22
Opening/closing safety devices
Closing safety devices
Opening safety
devices
Fig. 9
11.2
Connection of photocells and safety devices
Before connecting the photocells (or other devices) we advise
you to select the type of operation according to the movement
zone to be protected (see Fig.9).
Connection of 2 NC contacts in series
Fig. 10
N.B.:
If two or more devices with N.C. contact have the same
function, they must be connected to each other in
series (Fig. 10).
Connection of 2 NA contacts in parallel
Fig. 11
N.B.:
If two or more devices with N.A. contact have the same
function, they must be connected to each other in
parallel (Fig. 11).
Attention
:
a maximum of 2 pairs of SAFEBEAM photocells can be connected to the MASTER-B board
Examples of photocell connections
Fig. 12
1 pair of CLOSING
photocells
connection of no devices
2 pairs of CLOSING
photocells
1 pair of CLOSING photocells and 1
pair of OPENING/CLOSING photocells
1 pair of OPENING photocells